Methyl iodide → 1H-Imidazole, 5-((3,5-dichlorophenyl)methyl)-1,2-dimethyl-4-(1-methylethyl)-

Participants

Reaction Steps

In 20 ml of dry acetone was dissolved 930 mg (3.3 mmol) of 5-(3,5-dichlorobenzyl)-4-isopropyl-2-methyl-1H-imidazole (54), followed by addition of 1.4 g (10.1 mmol)of anhydrous potassium carbonate, and the mixture was stirred at room temperature. After 5 minutes, 225 μl (3.6 mmol)of methyl iodide was added at room temperature, and the mixture was heated to 80° C. After 5 hours, the mixture was cooled to room temperature, filtered, and the filtrate was concentrated under reduced pressure. The residue was diluted with water, and extracted with chloroform. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure. The crude product was purified by silica gel chromatography (ethyl acetate)to give 218 mg of the target compound (Compound I-100)(yield 22%).

Provenance & Evidence